如何制作抽象的SearchIndex类,类似于Django如何制作抽象基础模型?
我有几个SearchIndexes,我想提供相同的基本字段(object_id,时间戳,重要性等)。目前,我正在复制所有这些代码,所以我试图创建一个“BaseIndex”,并简单地让所有真正的索引类继承自此。
我试过了:
class BaseIndex(indexes.SearchIndex, indexes.Indexable):
text = indexes.CharField(document=True, use_template=True)
object_id = indexes.IntegerField()
timestamp = indexes.DateTimeField()
class Meta:
abstract = True
class PersonIndex(BaseIndex):
...other fields...
但这给了我错误:
NotImplementedError: You must provide a 'model' method for the '<myapp.search_indexes.BaseIndex object at 0x18a7328>' index.
所以我接着尝试了:
class BaseIndex(object):
text = indexes.CharField(document=True, use_template=True)
object_id = indexes.IntegerField()
timestamp = indexes.DateTimeField()
class PersonIndex(BaseIndex, indexes.SearchIndex, indexes.Indexable):
first_name = indexes.CharField()
middle_name = indexes.CharField()
last_name = indexes.CharField()
但是这些给了我错误:
SearchFieldError: The index 'PersonIndex' must have one (and only one) SearchField with document=True.
如何从自定义SearchIndex子类继承?
答案 0 :(得分:13)
只是不要将indexes.Indexable
作为父母包含在您不想索引的任何内容上。
所以修改你的第一个例子。
class BaseIndex(indexes.SearchIndex):
text = indexes.CharField(document=True, use_template=True)
object_id = indexes.IntegerField()
timestamp = indexes.DateTimeField()
class Meta:
abstract = True
class PersonIndex(BaseIndex, indexes.Indexable):
...other fields...
答案 1 :(得分:4)
class BaseIndex(indexes.SearchIndex):
model=None
text = indexes.CharField(document=True, use_template=True)
object_id = indexes.IntegerField()
timestamp = indexes.DateTimeField()
def get_model(self):
return self.model
class PersonIndex(BaseIndex, indexes.Indexable):
first_name = indexes.CharField()
middle_name = indexes.CharField()
last_name = indexes.CharField()
def get_model(self):
return Person